We consider the make-or-buy decision of oligopolistic firms in an industry in which
final good production requires specialised inputs. Factor price considerations dictate
that firms acquire the intermediate abroad, by either producing it in a wholly owned
subsidiary or outsourcing it to a supplier who must make a relationship specific
investment. Firms’ internationalisation mode depends on cost and strategic
considerations. Crucially, asymmetric equilibria emerge, with firms choosing different
modes of internationalisation, even when they are ex-ante identical. With ex-ante
asymmetries, lower cost producers have a stronger incentive to vertically integrate
(FDI), while higher cost firms are more likely to outsource